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Finding the Fourth Proportional to 69,399.90, 104,168.97 and 38,249.82

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Solution

The fourth proportional to 69,399.90, 104,168.97 and 38,249.82 is: 57,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,399.90 : 104,168.97 = 38,249.82 : x
  2. Step 2: Convert to fraction form
    69,399.90/104,168.97 = 38,249.82/x
  3. Step 3: Cross multiply
    69,399.90x = 104,168.97 × 38,249.82
  4. Step 4: Simplify right side
    69,399.90x = 3,984,444,352.09
  5. Step 5: Solve for x
    x = 3,984,444,352.09/69,399.90
  6. Step 6: Final answer
    x = 57,412.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.